2022
DOI: 10.1016/j.envpol.2021.118604
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Insights into the impacts of dissolved organic matter of different origins on bioaccumulation and translocation of per- and polyfluoroalkyl substances (PFASs) in wheat

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Cited by 22 publications
(18 citation statements)
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“…As shown in Table S5, the mean log RCF of 6:2 Cl-PFESA in wheat roots decreased in the order of CK-6:2 Cl-PFESA (3.40) > FA-6:2 Cl-PFESA (3.20) > HA-6:2 Cl-PFESA (3.15), suggesting that FA and HA, particularly the latter, remarkably reduced the uptake of 6:2 Cl-PFESA in the wheat roots. This result is in line with our previous study, which reported that HA decreased the root uptake of perfluorohexane sulfonic, perfluorooctane acid (PFOA), PFOS, and 6:2 Cl-PFESA . After 240 h of exposure, 6:2 Cl-PFESA in wheat roots accounted for about 7.68, 2.44, and 2.21% of the dosed mass in the CK-6:2 Cl-PFESA, FA-6:2 Cl-PFESA, and HA-6:2 Cl-PFESA groups, respectively (Table S6, Figure S1), confirming that FA and HA markedly depressed its accumulation in the wheat roots.…”
Section: Resultssupporting
confidence: 92%
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“…As shown in Table S5, the mean log RCF of 6:2 Cl-PFESA in wheat roots decreased in the order of CK-6:2 Cl-PFESA (3.40) > FA-6:2 Cl-PFESA (3.20) > HA-6:2 Cl-PFESA (3.15), suggesting that FA and HA, particularly the latter, remarkably reduced the uptake of 6:2 Cl-PFESA in the wheat roots. This result is in line with our previous study, which reported that HA decreased the root uptake of perfluorohexane sulfonic, perfluorooctane acid (PFOA), PFOS, and 6:2 Cl-PFESA . After 240 h of exposure, 6:2 Cl-PFESA in wheat roots accounted for about 7.68, 2.44, and 2.21% of the dosed mass in the CK-6:2 Cl-PFESA, FA-6:2 Cl-PFESA, and HA-6:2 Cl-PFESA groups, respectively (Table S6, Figure S1), confirming that FA and HA markedly depressed its accumulation in the wheat roots.…”
Section: Resultssupporting
confidence: 92%
“…This might have occurred because the complexation of 6:2 Cl-PFESA with DOM reduced its freely dissolved concentration in the solution . One of our previous studies demonstrated that HA is bound with PFAS through hydrophobic interactions and reduced the bioavailability in solution . The larger molecular size and flexibility of HA relative to FA facilitates the formation of more hydrophobic domains, inducing stronger binding of HA with PFAS and yielding a greater decrease of 6:2 Cl-PFESA uptake by wheat roots …”
Section: Resultsmentioning
confidence: 98%
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